I get what you're saying, but the sheer amount of insane shit going on in the trailer, from rail-grinding to weird power-ups to hijacking a tractor trailer, alleviated that concern for me. It seems like they're committed to preserving the manic energy if traditional Mario Kart.
I was honestly absolutely blown away by the trailer, and I'm generally only sort of casually interested in Mario Kart. I definitely don't feel the nostalgia or excitement for it that I have for Zelda or 3D Mario, but I'm so sold on this.